/* ==========================================================================
   Tally — design tokens
   Palette:  ledger paper + brass ink + pencil red
   Type:     Fraunces (display) / Inter (body) / IBM Plex Mono (counters)
   ========================================================================== */

:root {
  --paper:        #E7E3D5;
  --paper-line:   #d6d2c1;
  --card:         #F4F1E6;
  --ink:          #1C2024;
  --ink-soft:     #565049;
  --brass:        #a97a1f;
  --brass-dark:   #7c5a17;
  --pencil:       #a63d2f;
  --pencil-soft:  #c96a5c;
  --green:        #4b7a5b;

  --font-display: "Fraunces", Georgia, serif;
  --font-body:    "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  --radius: 6px;
  --shadow-card: 0 1px 0 rgba(28,32,36,0.06), 0 6px 20px -10px rgba(28,32,36,0.25);
  --max-width: 880px;
}

@media (prefers-color-scheme: dark) {
  /* Intentionally not switching to a dark theme — the ledger-paper
     identity is the point. We do still respect reduced motion below. */
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  background-image:
    linear-gradient(var(--paper-line) 1px, transparent 1px);
  background-size: 100% 2.2rem;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brass-dark); text-decoration-thickness: 1.5px; text-underline-offset: 2px; }
a:hover { color: var(--pencil); }

:focus-visible {
  outline: 2.5px solid var(--pencil);
  outline-offset: 2px;
}

img, svg { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- header ---------- */

.site-header {
  padding: 28px 0 18px;
  border-bottom: 1.5px solid var(--ink);
}

.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.7rem;
  letter-spacing: -0.01em;
}

.brand-mark::after {
  content: "";
}

.brand-tick {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--brass);
  border: 1px solid var(--brass);
  border-radius: 3px;
  padding: 1px 5px;
  letter-spacing: 0.03em;
}

nav.site-nav {
  display: flex;
  gap: 22px;
  font-size: 0.95rem;
  font-weight: 500;
}

nav.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1.5px solid transparent;
  padding-bottom: 2px;
}

nav.site-nav a:hover,
nav.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--pencil);
}

/* ---------- hero ---------- */

.hero {
  padding: 46px 0 8px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brass-dark);
  margin: 0 0 10px;
}

h1.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.1rem, 4.6vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}

.hero-sub {
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 0 6px;
}

/* ---------- generic page prose ---------- */

.prose {
  padding: 44px 0 60px;
}

.prose h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  margin-bottom: 6px;
}

.prose .dek {
  color: var(--ink-soft);
  margin-top: 0;
  margin-bottom: 30px;
  font-size: 1.02rem;
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-top: 2.2em;
  margin-bottom: 0.5em;
  border-top: 1px solid var(--ink);
  padding-top: 0.7em;
}

.prose h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.05rem;
  margin-top: 1.6em;
}

.prose p { margin: 0.9em 0; }
.prose ul, .prose ol { margin: 0.9em 0; padding-left: 1.3em; }
.prose li { margin: 0.35em 0; }

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0;
  font-size: 0.95rem;
}
.prose th, .prose td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--paper-line);
}
.prose th {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.prose td { font-family: var(--font-mono); }

.updated-note {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* ---------- tool card ---------- */

.tool-card {
  background: var(--card);
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 22px 22px 18px;
  margin: 30px 0 10px;
}

.tool-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.btn {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  border: 1.3px solid var(--ink);
  border-radius: 4px;
  padding: 7px 12px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease, transform 0.06s ease;
}
.btn:hover { background: var(--ink); color: var(--card); }
.btn:active { transform: translateY(1px); }
.btn.btn-accent {
  border-color: var(--pencil);
  color: var(--pencil);
}
.btn.btn-accent:hover { background: var(--pencil); color: var(--card); }

#counter-text {
  width: 100%;
  min-height: 260px;
  resize: vertical;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink);
  background: transparent;
  border: none;
  border-top: 1px dashed var(--paper-line);
  padding-top: 14px;
  outline: none;
}
#counter-text::placeholder { color: #9a9488; }

/* ---------- odometer stat strip ---------- */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0;
  margin-top: 18px;
  border-top: 1.5px solid var(--ink);
}

.stat {
  padding: 14px 14px 16px 0;
  border-right: 1px dashed var(--paper-line);
}
.stat:last-child { border-right: none; }

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.odometer {
  display: inline-flex;
  gap: 2px;
}

.odometer .digit {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.9rem;
  font-weight: 600;
  background: var(--ink);
  color: var(--paper);
  border-radius: 3px;
  padding: 0 3px;
  min-width: 1.05ch;
  text-align: center;
  display: inline-block;
  transition: transform 0.16s ease, opacity 0.16s ease;
}

.odometer .digit.roll {
  animation: roll 0.22s ease;
}

@keyframes roll {
  0%   { transform: translateY(-40%); opacity: 0.2; }
  100% { transform: translateY(0);    opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .odometer .digit.roll { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- limit presets ---------- */

.limits {
  margin-top: 26px;
}

.limits h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 12px;
}

.limit-row {
  display: grid;
  grid-template-columns: 140px 1fr 70px;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--paper-line);
  font-size: 0.9rem;
}

.limit-name { font-weight: 600; }

.limit-track {
  height: 7px;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  overflow: hidden;
}

.limit-fill {
  height: 100%;
  background: var(--brass);
  width: 0%;
  transition: width 0.15s ease, background 0.15s ease;
}

.limit-fill.over { background: var(--pencil); }

.limit-count {
  font-family: var(--font-mono);
  text-align: right;
  color: var(--ink-soft);
}
.limit-count.over { color: var(--pencil); font-weight: 700; }

/* ---------- keyword chips ---------- */

.keywords {
  margin-top: 26px;
}
.keywords h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 12px;
}
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border: 1px solid var(--ink-soft);
  border-radius: 20px;
  padding: 4px 12px;
  color: var(--ink-soft);
}
.chip b { color: var(--ink); }

/* ---------- guide index cards ---------- */

.guide-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.guide-card {
  background: var(--card);
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
  padding: 18px 20px;
  text-decoration: none;
  color: var(--ink);
  display: block;
  transition: transform 0.08s ease;
}
.guide-card:hover { transform: translateX(3px); }
.guide-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 6px;
}
.guide-card p { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1.5px solid var(--ink);
  padding: 26px 0 40px;
  margin-top: 60px;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.site-footer nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--pencil); }

/* ---------- section for homepage below the tool ---------- */

.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0 0 6px;
}
.section-sub { color: var(--ink-soft); margin: 0 0 4px; max-width: 60ch; }

@media (max-width: 640px) {
  .limit-row { grid-template-columns: 1fr; gap: 4px; }
  .limit-count { text-align: left; }
}